Ō'ver-nīght'1, n.
(-nīt'), n. The time when evening is past and night is begun: more usually, the night following yesterday, or the previous evening.
If I had given you this at overnight, She might have been o'ertaken. Shak.
2 entries under this word
Overnight
O'ver-nīght'2, adv.
adv. During the night; more usually, during the night previous, or the night following yesterday; yesterday night; last night.
I had been telling her all that happened overnight. Dickens.